KR20230172383A - Feed material using soldier fly larva - Google Patents

Abstract

The present invention relates to a feed raw material containing dried black soldier larvae, grain powder, and functional additives, which is easy to manufacture, easy to store, and can be fed to various animals as a rich protein source.

Description

Feed raw material using black soldier fly larvae {FEED MATERIAL USING SOLDIER FLY LARVA}

The present invention relates to a feed raw material that can be added as a protein source when manufacturing compound feed. The dried product of protein-rich black soldier fly larvae can be stored at room temperature in powder form without additional processing, and can be mixed when manufacturing compound feed. This relates to feed raw materials using black soldier fly larvae, which are easy to use and therefore highly useful as feed for fish, livestock, and companion animals.

Black soldier flies are insects belonging to the arthropod insect class Diptera family Black soldier flies. Their body length is 13 to 20 mm and their overall color is black. Its habitat is distributed around the world, including the United States, India, Australia, Vietnam, and Korea. Black soldier flies have a very wide range of food choices, so they are used to process organic waste resources such as food waste, and are also attracting attention as a source of protein for feed.

Black soldier fly larvae contain 45% crude protein, 32% crude fat, 6.2% crude ash, and 8.4% crude fiber, and are rich in essential amino acids such as arginine, methionine, and lysine, making them a source of protein for poultry feed and farmed fish. There is a lot of potential. Therefore, it is attracting attention as an excellent animal feed that can replace soybean meal and fish meal consumed by chickens during the laying season. In particular, larvae and pupae are of excellent value as feed ingredients.

However, black soldier fly larvae have a high fat content, so they are transformed into a powder or dough-like form during the process of grinding to a specific particle size, so they can only be manufactured into powder by processing them through a fat removal process or an additional process after grinding. There were problems such as:

As a technology to solve this problem, Republic of Korea Patent No. 2029027 discloses a composition containing insect powder using insects from which fat has been removed from black soldier fly larvae. However, when additionally performing a degreasing process, etc., there is a problem in that material processing costs increase.

Blended feed is a mixture or processing of sweet feed, supplementary feed, etc. in an appropriate ratio. It is a feed made by appropriately mixing several raw feed ingredients to evenly supply nutrients suitable for the type of livestock and the purpose of raising them.

Compounded feed has the advantage of being able to feed by adjusting the nutritional content depending on the animal being fed, and in some cases, has various advantages such as being able to be manufactured by varying the mixed ingredients depending on the health status of the animal being fed. there is.

However, in order to use it as mixed feed, it has a similar level of powder as other powders used in mixed feed, so it is easy to mix, and not only can it be mixed uniformly, but it can also be molded into an appropriate shape as needed. Since it must be possible, it is necessary to process it into a powder state of appropriate fineness.

Meanwhile, in order to protect fish resources and prevent marine pollution, the use of fish feed made of fishmeal has recently been discouraged in aquaculture farms. As a result, new fish feed that has excellent nutrients but does not cause marine pollution is being developed. The demand for it is increasing.

Therefore, there continues to be a demand for the development of a powdered composition using black soldier fly larvae, which is an excellent source of nutrition, in order to be widely used in compound feed, fish feed, etc.

Republic of Korea Patent No. 2398960 Republic of Korea Patent No. 1878021 Republic of Korea Patent No. 2029027

The purpose of the present invention is to provide a feed raw material using dried larvae of black soldier fly, etc., which is easy to manufacture, maintain, and store in powder form.

The present invention also aims to enable the supply of dried larvae of black soldier flies, which are a rich source of protein, as food to various animals.

The purpose of the present invention is to provide a feed raw material that can be easily mixed and fed to various animals.

The purpose of the present invention is to solve the processing difficulties caused by the high fat content of dried black soldier fly larvae.

The purpose of the present invention is to provide a feed raw material that can be supplied in powder form without an additional process for processing dried larvae, such as black soldier fly, and whose supply cost is significantly lowered by reducing the manufacturing process and manufacturing cost.

The feed raw material according to the present invention for solving the above-described problems includes dried black soldier fly larvae, grain powder, and functional additives.

In the present invention, the feed raw material may be fed to one or more animals selected from the group consisting of fish, livestock, and companion animals.

In the present invention, the dried soldier larvae and the grain powder are included in a weight ratio of 3:7 to 7:3, and the grain powder is brown rice, barley, soybean, rice, wheat, corn, rice, coix seed, and millet. , may include one or more selected from the group consisting of sorghum, red beans, millet, and glutinous rice.

In the present invention, the feed raw material may contain 20 to 30% by weight of protein and 15 to 20% by weight of fat based on the total weight.

In the present invention, the feed raw material may have a fineness of 80 to 120 mesh, and the feed raw material may be maintained in a powder state at a temperature range of 20 to 50 ° C.

The feed raw material according to the present invention is easy to feed as feed to various animals and has the advantage of being easy to supply and store.

The feed raw material according to the present invention has a lower ratio of fat compared to the overall composition, which has the effect of preventing deformation at temperatures above room temperature or during processing.

According to the present invention, it is easy to manufacture in a powder state simply by grinding without a degreasing process or a freeze-drying process, so it has the advantage of being easy to manufacture and easy to store.

The feed raw material according to the present invention has the advantage of low supply cost by reducing processing time and processing cost compared to existing processing methods for utilizing larvae of black soldier flies.

In particular, the feed raw material according to the present invention has the advantage of preventing marine pollution and protecting fish resources even when fed as feed for fish farming.

Figure 1 is a photograph of feed raw materials according to the present invention.
Figure 2 is a photograph of the dried larvae of Dongae used in the present invention.

Hereinafter, each configuration of the present invention will be described in more detail so that those skilled in the art can easily implement it. However, this is only an example, and the scope of rights of the present invention is determined by the following contents. Not limited.

As used herein, “preferred” or “preferably” refers to an embodiment of the invention that has certain advantages under certain conditions. However, other embodiments may also be preferred under the same or different conditions. Additionally, the identification of one or more preferred embodiments does not mean that other embodiments are not useful, nor does it exclude other embodiments that are within the scope of the invention.

As used herein, the term “comprising” is used to list materials, compositions, devices, and methods useful in the present invention and is not limited to the listed examples.

The present invention relates to feed raw materials containing dried black soldier larvae, grain powder, and functional additives.

Previously, dried black soldier fly larvae were rich in protein and contained non-allergenic protein components, making them an excellent protein source and used as feed for animals such as livestock and fish. However, in order to be applied to compound feed, they were used in powder form. There was a problem that it was difficult to manufacture or store, and the present invention is characterized by solving these problems.

Specifically, the feed raw material according to the present invention is intended to be fed to one or more animals selected from the group consisting of fish, livestock, and companion animals, and can be used as a feed raw material to supply protein sources such as compound feed.

In particular, fishmeal was often used as feed for farmed fish, but when fishmeal is spread in the sea or rivers and fed as feed, the fishmeal with high density sinks relatively quickly, so the ratio of it being used as feed compared to the amount of fishmeal fed is low. There is a problem that it can cause water pollution, and in addition, feeding fishmeal as feed is avoided worldwide to protect fish stocks, so it is advantageous to feed the feed raw material according to the present invention as feed to farmed fish. There is an advantage.

In addition, it can be fed to livestock and pets as an excellent protein source. In particular, meat such as beef and pork has the problem of easily causing allergies in pets, so it is recommended to feed non-allergenic protein derived from insects. It has the following advantages.

The feed raw material according to the present invention has a powder form and may have a fineness of 80 to 120 mesh. Preferably, it may be 120 mesh.

By having the corresponding powder size, it has the advantage of being able to be mixed evenly and evenly when mixed with mixed feed, and by being stored in a powder state, it has the advantage of being able to be stored for a long time without being easily deformed.

As explained earlier, dried black soldier fly larvae have a high fat content of about 32%, which makes it difficult to form powder on its own. Due to the high fat content, frictional heat or mechanical heat generated during the grinding process is present. Due to this, there is a problem in that the fat in the dried product is easily liquefied, cannot be maintained in a powder state, and is easily formed in a dough-like lump.

Previously, in order to manufacture dried black soldier fly larvae into powder, they first went through a degreasing process to remove fat, or used a process of grinding them in a freeze-dried state. However, in this case, the destruction of nutrients due to additional processing and the manufacturing process were used. The complexity of the resulting problem of increased manufacturing time and cost has resulted in the present invention, which has the advantage of being able to be used as a feed raw material in powder form by mixing and pulverizing dried larvae and grain powder in black soldier flies.

Specifically, the dried black soldier fly larvae and the grain powder may be included in a weight ratio of 3:7 to 7:3, and more preferably, may be included in a weight ratio of 5:5.

If the weight ratio of grain powder is higher than the above ratio, the protein content is reduced, making it difficult to use it as a protein source, and if the weight ratio of grain powder is lower than the above ratio, it cannot be manufactured in powder form. There is.

The grain powder may include one or more selected from the group consisting of brown rice, barley, soybeans, rice, wheat, corn, rice, coix seed, pearl millet, sorghum, red beans, millet, and glutinous rice.

Most preferably, the grain powder may be configured to include rice, but this is only an example and is not limited thereto. However, rice has the advantage of being easy to obtain and supply, and it also has the advantage of reducing manufacturing costs.

In addition, the grain powder may have a protein content of 7 to 8% by weight, a fat content of 0.1 to 2% by weight, and a fiber content of 8 to 11% by weight, based on the total weight of the grain powder. You can.

By satisfying the content of protein, fat and fiber within the above ratio range, when pulverizing together with dried black soldier fly larvae, it is possible to adsorb fat components from the dried black soldier fly larvae and grind them into powder without agglomeration.

Additionally, the grain powder may be manufactured by pulverizing grains that are immersed in carbonated water with a carbon dioxide gas pressure of 0.5 to 0.75 kg/cm3 for 20 to 60 minutes and then dried at a temperature of 50 to 60°C.

More specifically, it may be obtained by pulverizing grains that are immersed in carbonated water for 30 to 50 minutes and then dried under the above temperature conditions.

When immersed in carbonated water within the above time range and dried at a slightly heated temperature, micropores are formed on the surface of the grain, especially in the case of rice, in the surface structure of the rice. When immersed in carbonated water, carbonic acid is absorbed from the surface of rice to a certain depth, and when it is quickly vaporized under the above temperature conditions, fine pores are formed on the surface of rice. At the same time, it has the effect of evaporating the moisture in the rice, thereby reducing the water content of the rice.

By grinding with fine pores formed on the surface of the rice, the ultra-fine pores are maintained in the rice powder particles, and later, in the process of simultaneous grinding with the dried black soldier fly larvae, fat components are more quickly adsorbed and water content is reduced. The density of the powder becomes lighter, allowing the grain powder to circulate more quickly and stick around the dried black soldier fly larvae, making the content of grain powder and dried black soldier fly larvae more uniform in each individual powder particle that makes up the feed raw material. It has an effect.

The feed raw material according to the present invention is prepared by mixing the dried larvae of black soldier flies and the grain powder, pulverizing it, and adding functional additives to it, or by adding the dried larvae of black soldier flies, the grain powder, and the functional additives at once. It can be manufactured by methods such as grinding.

In the step of mixing and pulverizing the dried black soldier fly larvae, the grain powder adsorbs the fat component contained in the dried black soldier fly larvae, allowing the feed raw material to be formed and maintained in a powder state.

In this way, the powdered feed raw material obtained by mixing and pulverizing dried larvae of black soldier flies and grain powder has the effect of being maintained in a powder state in the temperature range of 20 to 50 ° C.

More preferably, it can be maintained in powder form at a temperature of 30 to 50 ℃ or higher. Considering that the temperature when the grinder operates at room temperature is around 35 ℃, the feed raw material according to the present invention can be used as is. It has the advantage of being able to maintain its powder state.

At this time, as the grain powder adsorbs the fat component, the feed raw materials maintained in the powdered state are prevented from being denatured by rancidity of the fat, and this has the advantage of being able to be easily measured and added to various mixed feeds, feed, etc. have

Meanwhile, the functional additive may be added to improve the functionality and physical properties of feed raw materials, or may be a health-supporting functional additive for the health of animals to be fed.

For example, by using functional additives such as pearl powder and illite, animals to be fed can ingest them to improve their natural healing ability and have the effect of improving their immunity.

Meanwhile, the feed raw material according to the present invention has a protein content of 20 to 30% based on the weight of the total composition. The fat content may be 15 to 20%.

The feed raw material according to the present invention can be manufactured by the following method, but this is only an example and is not necessarily limited to being manufactured by the method.

Dried black soldier fly larvae and grain powder are put into a grinder at the same time and pulverized. During the grinding process, cold air and liquid nitrogen are used to maintain the temperature below 35℃. This is to prevent denaturation of ingredients during the grinding process, and to prevent the material from denaturing or deteriorating due to excessive temperature rise.

The pulverized powder can be mixed with a mixer, etc. by adding functional additives, and then completed as a final composition.

Meanwhile, as described above, the grain powder can be prepared through the following process.

First, the grain powder can be manufactured by immersing the grain in carbonated water with a carbon dioxide gas pressure of 0.5 to 0.75 kg/cm3 for 20 to 60 minutes and then grinding the dried grain at a temperature of 50 to 60°C.

Through this process, compared to grain powder obtained by simple grinding, individual powder particles have ultra-fine pores and the water content is reduced, so fat components are absorbed more quickly in the process of simultaneous grinding with dried black soldier fly larvae, and water content is reduced. By reducing the density of the powder, the density of the powder becomes lighter, allowing the grain powder to circulate more quickly and stick around the dried black soldier fly larvae, allowing the content of grain powder and dried black soldier fly larvae to be observed in each individual powder particle that makes up the feed raw material. It has a uniforming effect.

Below, the present invention is explained in more detail based on examples.

<Manufacturing Example 1>

Prepare 10 kg of dried black soldier fly larvae and 10 kg of rice flour and simultaneously put them into a grinder equipped with a cooling device maintained at less than 35°C. After grinding the final obtained powder to a fineness of 80 to 120 mesh, 1 kg each of pearl powder and illite powder were added and mixed with the pulverized powder to prepare feed raw materials.

<Production Example 2>

In Preparation Example 1, instead of the rice flour, rice was immersed in carbonated water with a carbon dioxide gas pressure of 0.7 kg/cm3 for 50 minutes, dried at a temperature of 50 to 60°C, and then ground. It was prepared in the same manner as 1.

<Comparative Example 1>

It was prepared in the same manner as Preparation Example 1, except that 5 kg of dried larvae and 15 kg of rice flour were used.

<Comparative Example 2>

It was prepared in the same manner as Preparation Example 1, except that 15 kg of dried larvae and 5 kg of rice flour were used.

<Comparative Example 3>

It was prepared in the same manner as Preparation Example 1, except that 10 kg of dried larvae were placed in a grinder.

<Comparative Example 4>

It was prepared in the same manner as in the production example, except that the final obtained powder was ground to a fineness of 50 mesh.

<Comparative Example 5>

It was prepared in the same manner as Preparation Example 1, except that the final obtained powder was ground to a fineness of 150 mesh.

[Experimental method]

1. Powder condition evaluation

When 10 g of powder is taken and dropped from a height of 30 cm, if the powder does not clump and lightly scatters, it is rated as 5 (full score). If it does not clump and disperse, it is rated as 0. After repeating 20 times, the test is evaluated as 0. The average value was calculated.

2. Room temperature storage evaluation

After being stored at room temperature for 2 weeks, olfactory evaluation was performed to check the degree of rancidity.

If there was a fermented or sour smell, a score of 0 was given, and if there was no significant difference from immediately after production, a score of 5 was given.

3. Price index evaluation

The price per 1 kg of dry powder using commercially available black soldier fly larvae was assumed to be 100, and the price index per 1 kg of the powders of the above examples and comparative examples was calculated.

4. Evaluation of ease of powdering process

The ease of powdering process was evaluated based on the time required to form 1 kg of powder.

In addition to the grinding time, the evaluation was conducted taking into account delay time and maintenance time due to malfunction of mechanical equipment that occurred during the process, and relative evaluation was made according to the time required, and each ranking is listed in Table 1 below.

5. Powder uniformity evaluation

5 g of the prepared powder was taken and component analysis was performed.

The component analysis was repeated 20 times, averaged, and relative evaluation was performed in order of smallest standard deviation, and the rankings are listed in Table 1.

Manufacturing example 1 Manufacturing example 2 Comparative Example 1 Comparative example 2 Comparative Example 3 Comparative example 4 Comparative Example 5 Powder condition evaluation 4 5 5 manufacturing
Impossible manufacturing
Impossible 3 2 Room temperature storage evaluation 5 5 5 2 3 price index 70 80 90 80 85 Ease of Process Assessment 2 One 3 4 5 Powder uniformity evaluation 2 One 3 4 5 Powder composition analysis
(Based on total powder
weight%) protein 26.4 27.1 15.0 26.6 26.8 province 17.1 16.1 8.4 15.9 16.7 fiber 9.3 9.2 5.8 8.9 9.5 etc 47.2 47.6 63.8 48.6 47.0

Referring to Table 1 above, it can be seen that Preparation Examples 1 and 2 are manufactured from feed raw materials that are excellent in powder condition and have excellent storage properties at room temperature.

Meanwhile, in the evaluation of process ease and powder uniformity, it can be confirmed that the feed raw material according to Preparation Example 2 received an excellent evaluation.

In the case of Comparative Example 2 and Comparative Example 3, it can be seen that the content of dried larvae of black soldier fly, etc. is high, resulting in a high content of fat components, making it difficult to powder them.

It can be seen that the powder manufactured according to the manufacturing example has an excellent ingredient content, can form a uniform powder, and has the advantage of excellent manufacturing process efficiency.

Claims (2)

As a feed raw material containing dried larvae, grain powder, and functional additives,
A feed raw material prepared by simultaneously putting the dried larvae of black soldier flies and the grain powder in a grinder at a weight ratio of 3:7 to 7:3 and grinding them under conditions maintained at a temperature of less than 35°C.
According to paragraph 1,
The feed raw material is characterized in that the dried soldier fly larvae and the grain powder are simultaneously put into a grinder and pulverized, so that each individual powder particle contains both the grain powder and the dried soldier fly larvae.